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Previously, two conditions were necessary to enable differentiable programming: - Using the `-enable-experimental-differentiable-programming` frontend flag. - Importing the `_Differentiation` module. Importing the `_Differentiation` module is the true condition because it contains the required compiler-known `Differentiable` protocol. The frontend flag is redundant and cumbersome. Now, the frontend flag is removed. Importing `_Differentiation` is the only condition.
25 lines
937 B
Swift
25 lines
937 B
Swift
// RUN: %target-swift-frontend -typecheck -verify %s
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// REQUIRES: asserts
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// TF-1167: `OverrideMatcher::match` crash due to meaningless assertion:
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// `assert(false)`. The assertion was triggered when parameter indices
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// could not be resolved for neither base nor derived declaration
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// `@differentiable` attributes.
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//
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// `import _Differentiation` is intentionally omitted from this test case.
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public protocol Base {
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associatedtype Input
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// expected-error @+1 {{use of undeclared type 'Differentiable'}}
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associatedtype Output: Differentiable
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// expected-error @+1 {{@differentiable attribute used without importing module '_Differentiation'}}
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@differentiable(wrt: self)
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func callAsFunction(_ input: Input) -> Output
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}
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public protocol Derived: Base {
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// expected-error @+1 {{@differentiable attribute used without importing module '_Differentiation'}}
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@differentiable
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func callAsFunction(_ input: Input) -> Output
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}
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